diff --git a/hwe/ts/components/MessagePanel.vue b/hwe/ts/components/MessagePanel.vue
index abeb571e..bef39014 100644
--- a/hwe/ts/components/MessagePanel.vue
+++ b/hwe/ts/components/MessagePanel.vue
@@ -27,7 +27,7 @@
         </BFormSelect>
       </div>
       <div id="msg_input-col" class="col-12 col-md-8 d-grid">
-        <input v-model="newMessageText" type="text" maxlength="99" @keydown.enter="sendMessage" class="form-control" />
+        <input v-model="newMessageText" type="text" maxlength="99" class="form-control" @keydown.enter="sendMessage" />
       </div>
       <div id="msg_submit-col" class="col-6 col-md-2 d-grid">
         <BButton variant="primary" @click="sendMessage">서신전달&amp;갱신</BButton>
@@ -83,7 +83,18 @@
     </div>
     <div class="PrivateTalk">
       <div class="stickyAnchor"></div>
-      <div class="BoardHeader bg0">개인 메시지</div>
+      <div class="BoardHeader bg0 d-flex">
+        <div class="flex-grow-1 align-self-center">개인 메시지</div>
+        <div>
+          <BButton
+            v-if="messagePrivate.length > 0 && latestPrivateMsgToastInfo[2] > latestPrivateMsgToastInfo[1]"
+            size="sm"
+            variant="secondary"
+            @click="readLatestMsg('private')"
+            >모두 읽음</BButton
+          >
+        </div>
+      </div>
       <template v-if="messagePrivate.length == 0">
         <div>메시지가 없습니다.</div>
       </template>
@@ -107,7 +118,18 @@
     </div>
     <div class="DiplomacyTalk">
       <div class="stickyAnchor"></div>
-      <div class="BoardHeader bg0">외교 메시지</div>
+      <div class="BoardHeader bg0 d-flex">
+        <div class="flex-grow-1 align-self-center">외교 메시지</div>
+        <div>
+          <BButton
+            v-if="messageDiplomacy.length > 0 && latestDiplomacyMsgToastInfo[2] > latestDiplomacyMsgToastInfo[1]"
+            ize="sm"
+            variant="secondary"
+            @click="readLatestMsg('diplomacy')"
+            >모두 읽음</BButton
+          >
+        </div>
+      </div>
       <template v-if="messageDiplomacy.length == 0">
         <div>메시지가 없습니다.</div>
       </template>
@@ -132,17 +154,27 @@
   </div>
 </template>
 
+<script lang="ts">
+declare const staticValues: {
+  serverName: string;
+  serverNick: string;
+  serverID: string;
+  mapName: string;
+  unitSet: string;
+};
+</script>
 <script setup lang="ts">
 import { onMounted, ref, toRef, watch, type Ref } from "vue";
 import { delay } from "@/util/delay";
 import { SammoAPI } from "@/SammoAPI";
 import { isString } from "lodash";
-import type { MabilboxListResponse, MailboxItem, MsgItem, MsgResponse, MsgType } from "@/defs/API/Message";
+import type { MabilboxListResponse, MsgItem, MsgResponse, MsgType } from "@/defs/API/Message";
 import MessagePlate from "@/components/MessagePlate.vue";
-import { useToast, BFormSelect, BFormSelectOptionGroup } from "bootstrap-vue-3";
+import { useToast, BFormSelect } from "bootstrap-vue-3";
 import { unwrap } from "@/util/unwrap";
 import { isBrightColor } from "@/util/isBrightColor";
 
+const serverID = staticValues.serverID;
 const toasts = unwrap(useToast());
 
 const emit = defineEmits<{
@@ -187,12 +219,107 @@ const messageIndexedList: Record<MsgType, Ref<MsgItem[]>> = {
   diplomacy: messageDiplomacy,
 };
 
+function generateLatestMsgState(msgType: MsgType) {
+  const storageKey = `state.${serverID}.latestReadMsg.${msgType}`;
+  const latestReadMsgID = parseInt(localStorage.getItem(storageKey) ?? "0");
+  const obj = ref<[string | undefined, number, number]>([undefined, latestReadMsgID, latestReadMsgID]);
+  watch(obj, ([, newMsgID], [, oldMsgID]) => {
+    if (newMsgID == oldMsgID) {
+      return;
+    }
+    localStorage.setItem(storageKey, newMsgID.toString());
+  });
+  return obj;
+}
+
+const latestPrivateMsgToastInfo = generateLatestMsgState("private");
+const latestDiplomacyMsgToastInfo = generateLatestMsgState("diplomacy");
+
+function readLatestMsg(msgType: MsgType) {
+  const targetMap = {
+    private: latestPrivateMsgToastInfo,
+    diplomacy: latestDiplomacyMsgToastInfo,
+    public: undefined,
+    national: undefined,
+  };
+
+  const target = targetMap[msgType];
+  if (!target) {
+    return;
+  }
+
+  const [toastID, , lastestReceivedID] = target.value;
+  if (toastID) {
+    toasts.remove(toastID);
+  }
+  target.value = [undefined, lastestReceivedID, lastestReceivedID];
+}
+
+function _updateLatestMsg(msg: MsgItem) {
+  const msgType = msg.msgType;
+
+  //TODO: 메시지함으로 바로 이동하는 기능이 나중에 필요할 것
+  if (msgType == "private") {
+    const [toastID, latestMsgID] = latestPrivateMsgToastInfo.value;
+    if (msg.id <= latestMsgID) {
+      return;
+    }
+
+    if (toastID) {
+      toasts.remove(toastID);
+    }
+    const newToastID = toasts.show(
+      {
+        title: "새로운 개인 메시지",
+        body: "새로운 개인 메시지가 도착했습니다.",
+      },
+      {
+        delay: 1000 * 60 * 10,
+        variant: 'warning'
+      }
+    ).options.id;
+    latestPrivateMsgToastInfo.value = [newToastID, latestMsgID, msg.id];
+    return;
+  }
+
+  if (msgType == "diplomacy") {
+    const [toastID, latestMsgID] = latestDiplomacyMsgToastInfo.value;
+    if (msg.id <= latestMsgID) {
+      return;
+    }
+
+    if (toastID) {
+      toasts.remove(toastID);
+    }
+    const newToastID = toasts.show(
+      {
+        title: "새로운 외교 메시지",
+        body: "새로운 외교 메시지가 도착했습니다.",
+      },
+      {
+        delay: 1000 * 60 * 10,
+        variant: 'warning'
+      }
+    ).options.id;
+    latestDiplomacyMsgToastInfo.value = [newToastID, latestMsgID, msg.id];
+    return;
+  }
+}
+
+function updateLatestMsg(msg: MsgItem[]) {
+  for (const msgItem of msg) {
+    if (msgItem.src.id == generalID.value) continue;
+    _updateLatestMsg(msgItem);
+    break;
+  }
+}
+
 function processMsg(msg: MsgItem) {
   if (msg.option.delete) {
     (() => {
       const targetID = msg.option.delete;
       const targetMsg = messageStorage.get(targetID);
-      if(!targetMsg){
+      if (!targetMsg) {
         return;
       }
       targetMsg.option.invalid = true;
@@ -232,6 +359,7 @@ function updateMsgResponse(response: MsgResponse) {
 
     if (msgList.value.length == 0) {
       msgList.value = newMsgList;
+      updateLatestMsg(newMsgList);
       continue;
     }
 
@@ -256,6 +384,7 @@ function updateMsgResponse(response: MsgResponse) {
     const newMsgTailID = filteredMsgList[filteredMsgList.length - 1].id;
     if (newMsgTailID > msgHeadID) {
       msgList.value = [...filteredMsgList, ...msgList.value];
+      updateLatestMsg(filteredMsgList);
       continue;
     }
 
@@ -592,7 +721,7 @@ onMounted(async () => {
     display: none;
   }
 
-  .MessageList{
+  .MessageList {
     overflow-y: auto;
     overflow-x: hidden;
     height: 650px;